Someone slow, dimwitted or stupid - another way of saying "Not the sharpest knife in the drawer". Also, someone who stands out in a crowd as being particularly unintelligent.
Marisa: Why does Eric even bother talking in class - he has no idea what he's talking about.
Michael: What do you expect? I mean he's not the brightest bulb in the chandelier!
To date, seduce or pursue a significantly younger man. From the Spanish name "Chantel", meaning one who dates a younger man.
High school girl #1: Did you hear? Sally's new boyfriend is in ninth grade.
High school girl #2: Oh, wow! I never thought she'd be one to pull a chantelazo.
Chantelle is a highly intuitive human. She has a heart of gold, amazing hair and her smile lights up the room. She is a human bullshit detector. She can read people like a book and is dead accurate when she taps into her intuition. She is highly ambitious and one of the sweetest earth angels you will ever meet.